Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1142675
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dc.contributor.authorNASCIMENTO, V. F.
dc.contributor.authorAUAD, A. M.
dc.contributor.authorRESENDE, T. T. de
dc.contributor.authorVISCONDE, A. J. M.
dc.contributor.authorDIAS, M. L.
dc.date.accessioned2022-05-05T16:12:27Z-
dc.date.available2022-05-05T16:12:27Z-
dc.date.created2022-05-05
dc.date.issued2022
dc.identifier.citationAgronomy, v. 12, n. 4, 947, 2022.
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1142675-
dc.descriptionThe spittlebug Mahanarva spectabilis (Distant, 1909) is considered the main and most limiting pest of elephant grass (Pennisetum purpureum Schum.), and has caused economic losses to Brazilian farmers. In this study, we evaluated the insecticidal effects of aqueous extracts of garlic, rue, cinnamon, lemongrass, clove, star anise, eucalyptus, tobacco, and thyme on M. spectabilis nymphs. The results indicated that the tobacco extract was the most effective among all extracts, as it reached a mortality of 76%. The next most effective was star anise extract and cinnamon extract was the least effective. In the second stage of tests, we evaluated the insecticidal potential of five concentrations of tobacco extract. The values of LD50 and LD90 calculated for aqueous tobacco extract were, respectively, 11.5% and 33.3% 24 h after application, and 9.2% and 29.5% 48 h after application. We also evaluated different methods of extraction, through comparative tests, and the methods of infusion and decoction proved to be equivalent to those of the method of extraction by ultrasound. We conclude that among the nine aqueous plant extracts tested, tobacco extract was the only one recommended against M. spectabilis, as it showed insecticidal activity, with better results at a concentration of 25%, and with extraction by infusion and decoction.
dc.language.isoeng
dc.rightsopenAccess
dc.subjectAgroecologia
dc.subjectInseticida botanico
dc.subjectPlant active ingredients
dc.subjectExtraction methods
dc.titleInsecticidal activity of aqueous extracts of plant origin on Mahanarva spectabilis (Distant, 1909) (Hemiptera: Cercopidae).
dc.typeArtigo de periódico
dc.subject.thesagroCigarrinha
dc.subject.thesagroPraga de Planta
dc.subject.thesagroInseticida
dc.subject.thesagroMortalidade
dc.subject.thesagroExtração
dc.subject.nalthesaurusMortality
dc.subject.nalthesaurusAgroecology
dc.subject.nalthesaurusBotanical insecticides
dc.subject.nalthesaurusPest control
riaa.ainfo.id1142675
riaa.ainfo.lastupdate2022-05-05
dc.identifier.doihttps://doi.org/10.3390/agronomy12040947
dc.contributor.institutionVINÍCIUS FERRAZ NASCIMENTO, Universidade Federal de Juiz de Fora; ALEXANDER MACHADO AUAD, CNPGL; TIAGO TEIXEIRA DE RESENDE, CNPGL; AMANDA JDENAINA MENDOZA VISCONDE, Centro Universitário UniAcademia; MARCELLE LEANDRO DIAS, Universidade Federal de Juiz de Fora.
Aparece nas coleções:Artigo em periódico indexado (CNPGL)

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